Transistor – Fits Leica Geosystems Inc (Replaces 5961-00-936-7353)
Transistor – Fits Leica Geosystems Inc (Replaces 5961-00-936-7353) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Transistor – Fits Leica Geosystems Inc (Replaces 5961-00-936-7353)
Product Details
This is an aftermarket Transistor – Fits Leica Geosystems Inc (Replaces 5961-00-936-7353), an essential electronic component for various applications. Manufactured by Leica Geosystems Inc, it is designed to meet rigorous electronic specifications for reliable performance.
This component serves as a direct replacement for Airbus Ds Optronics Gmbh part 385087 and Wichmann Kg part 385087.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Notes |
|---|---|---|
| Leica Geosystems Inc | 385087 | Primary Part |
| Leica Geosystems Inc | 5961-00-936-7353 | NSN Reference |
| Airbus Ds Optronics Gmbh | 385087 | Direct Replacement |
| Wichmann Kg | 385087 | Direct Replacement |
Engine & Model Compatibility
Compatibility information is not applicable as this is an electronic component (transistor) and not a direct fit for specific marine engine models.
Technical Specs
- Product Type
- Transistor
- Housing Material
- Metal
- Product Dimensions
- 11.0" L x 9.5" W x 6.5" H
- Fitting Type
- Terminal
- Operating Temperature
- 200.0 °C (392.0 °F) Junction maximum
- Internal Configuration
- Junction Contact
- Internal Junction Configuration
- PNP
- JEDEC/CASE Outline
- TO-5
- Features
- Hermetically Sealed Case
- Semiconductor Material
- Silicon
- Voltage Rating
- 90.0 V maximum Collector to Base (static, emitter open) / 7.0 V maximum Emitter to Base (static, collector open)
- Current Rating
- 1.00 A Source Cutoff Current maximum
- Power Rating
- 3.0 W maximum total power dissipation
- Terminals
- 3 uninsulated wire lead
What’s in the Box
- 1 x Transistor (385087)
Installation Notes
Installation of this transistor requires soldering and should be performed by a technician with experience in handling sensitive electronic components. Ensure the work area is static-free. Correct orientation and placement on the circuit board are critical for proper function. Refer to the service manual for your specific device for detailed schematics.
Troubleshooting & FAQ
How can I test if my old transistor is failing?
Transistor failure can often be diagnosed with a multimeter set to diode test or resistance mode. Common signs include short circuits between terminals (a zero reading) or open circuits (an infinite reading). Compare the readings from the suspect transistor to a known good one or the specifications in the device's service manual.
What are the symptoms of a faulty transistor?
Symptoms can vary widely depending on the circuit but may include a completely dead device, intermittent operation, overheating in a specific area of the circuit board, or failure of particular functions controlled by that part of the circuit.
Is this a direct replacement for my original part?
Yes, this component is designed as a direct cross-reference for several part numbers, including Airbus Ds Optronics Gmbh 385087 and Wichmann Kg 385087. Always verify the technical specifications against your original part to ensure a perfect match.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
Payment & Security
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